Harks.I can understand why people go mountain climbing, or row single handed across the Atlantic, I can see the fun in wrestling alligators or bungee jumping.
But I can honestly say I have absolutely no idea why anyone in their right minds would ever, in any circumstance, climb into a hole in the ground for fun!
One of my teachers was a part time member of the Cave Rescue Service. She told how they were called to help a woman who had tried to gou round a tight corner facing forwrd. Apparently you must go round backwards so that your knees can bend around the corner. She was wedgeds by her knees and they had to break her legs to get her out.
She died on the way back to the surface. Nice!